Reaktion #498405

ord-c1b423b0d80a4199a2a5ede6c00eb30b

Lösungsmittel

Reaktionsbedingungen

Temperatur
70°CELSIUS
Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    Sonstigethe solvent is evaporated
  2. 2
    SonstigeThe crude material is triturated with CH3CN
  3. 3
    Sonstigethe organic layer is decanted
  4. 4
    SonstigeThe remaining solid is chromatographed with MeOH/CH2Cl2 (1-5%)

Vorschrift

4-Chlorobenzylamine (0.66 mL) and a 0.5 M solution of NaOMe in CH3OH (0.060 mL) is added to a solution of methyl 1-methyl-6-(4-morpholinylmethyl)-1H-4,1,2-benzothiadiazine-3-carboxylate 4,4-dioxide (Preparation 41, 0.16 g) in CH3OH (15 mL) at room temperature. The mixture is heated for 12 hours at 70° C. and then the solvent is evaporated. The crude material is triturated with CH3CN and the organic layer is decanted. The remaining solid is chromatographed with MeOH/CH2Cl2 (1-5%) to obtain 0.174 g (83%) of the title compound as a white solid. Physical characteristics: MS (ESI+) m/z 463 (M+H).

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US06559145B2uspto-grants-2003_05